ahh ive mistaken which stage battle you on about. em get in the rock crusher and drive near the towers (try not to get too close or the units sitting near will attack you) then hit the button to the do the double team (its a for me cause im on the 360) itll bring up a target. put that over the tower and wail away. might take a few whacks but if ya dont go too close ya should just be able to take your time and repeat. once those towers are out of the way you should have a good army waiting. march them over and kick ass

hey man, thx again, I got thru en kicked her ass after an epic fight of 1.5hours, hehe, up 2 the next stage :-)